To spot a Costa's hummingbird, you have to know what they look like. Females are hard to identify compared to other ...

Costa’s generally plainer on throat and underparts, without dusky throat spotting. See black-chinned hummingbird.

An acoustic camera image shows how Costa's hummingbirds dive to the side of a caged female to minimize an audible Doppler sound. The color represents loudness. Disclaimer: AAAS and EurekAlert!

Furnace Creek provides riparian habitat used by the endangered southwestern willow flycatcher during migration and provides breeding habitat for Costa's hummingbird and eight other species of ...

Half of the species of Hummingbirds of Costa Rica assembled with direct sounds, comments on varied features of the birds, leading to their identification, enjoyable entertainment, and educational ...